<template>
  <!-- 项目的最外层 -->
    <div class="outer">
        <!-- 头部 -->
        <header class="header">
            <!-- 头部的第一行 -->
            <div class="top">
                <div class="container">
                    <div class="loginList">
                        <p>尚品汇欢迎您！</p>
                      <!-- 没有用户名：未登录 -->
                        <p v-if="!userName">
                          <span>请</span>
                    <!-- 声明式导航：router-link务必要有to属性 -->
                        <router-link to="/login">登录</router-link>
                        <router-link class="register" to="/register">免费注册</router-link>
                        </p>
                      <!-- 登录了 -->
                      <p v-else>
                          <a>{{userName}}</a>
                          <a class="register" @click="logout">退出登录</a>
                      </p>
                    </div>
                    <div class="typeList">
                        <router-link to="/center/myorder">我的订单</router-link>
                        <router-link to="/shopcart">我的购物车</router-link>
                        <a href="###">我的尚品汇</a>
                        <a href="###">尚品汇会员</a>
                        <a href="###">企业采购</a>
                        <a href="###">关注尚品汇</a>
                        <a href="###">合作招商</a>
                        <a href="###">商家后台</a>
                    </div>
                </div>
            </div>
            <!--头部第二行 搜索区域-->
            <div class="bottom">
                <h1 class="logoArea">
                    <router-link class="logo" to="/home">
                        <img src="./images/logo.png" alt="">
                    </router-link>
                </h1>
                <div class="searchArea">
                    <form action="###" class="searchForm">
                        <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model="keyWord"/>
                        <button class="sui-btn btn-xlarge btn-danger" type="button" @click="goSearch">搜索</button>
                    </form>
                </div>
            </div>
        </header>
    </div>
</template>

<script>
export default {
  name: 'Header',
  data () {
    return {
      keyWord: ''
    }
  },
  methods: {
    // 搜索按钮的回调函数 需要向 search 路由进行跳转
    goSearch () {
      if (this.$route.query) {
        const location = ({ name: 'search', params: { keyWord: this.keyWord || undefined } })
        // 携带 query 参数
        location.query = this.$route.query
        this.$router.push(location, '/search')
        console.log('点击搜索')
      }
    },
    // 退出登录
    logout () {
      // 1:需要发请求，通知服务器退出登录【清除一些数据：token】
      // 2:清除项目当中的数据【userInfo、token】
      try {
        // 派发 action
        this.$store.dispatch('userLogout')
        // 跳转回首页
        this.$router.push('/home')
      } catch (error) {
        alert(error.message)
      }
    }
  },
  mounted () {
    this.$bus.$on('clear', () => {
      this.keyWord = ''
      if (this.$router.query) {
        this.$router.push({ name: 'search', query: this.$router.query })
      }
    })
  },
  computed: {
    userName () {
      return this.$store.state.User.userInfo.name
    }
  }
}
</script>

<style lang="less" scoped>
.outer .header > .top {
  background-color: #eaeaea;
  height: 30px;
  line-height: 30px;
}
.outer .header > .top .container {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}
.outer .header > .top .container .loginList {
  float: left;
}
.outer .header > .top .container .loginList p {
  float: left;
  margin-right: 10px;
}
.outer .header > .top .container .loginList p .register {
  border-left: 1px solid #b3aeae;
  padding: 0 5px;
  margin-left: 5px;
}
.outer .header > .top .container .typeList {
  float: right;
}
.outer .header > .top .container .typeList a {
  padding: 0 10px;
}
.outer .header > .top .container .typeList a + a {
  border-left: 1px solid #b3aeae;
}
.outer .header > .bottom {
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}
.outer .header > .bottom .logoArea {
  float: left;
}
.outer .header > .bottom .logoArea .logo img {
  width: 175px;
  margin: 25px 45px;
}
.outer .header > .bottom .searchArea {
  float: right;
  margin-top: 35px;
}
.outer .header > .bottom .searchArea .searchForm {
  overflow: hidden;
}
.outer .header > .bottom .searchArea .searchForm input {
  box-sizing: border-box;
  width: 490px;
  height: 32px;
  padding: 0px 4px;
  border: 2px solid #ea4a36;
  float: left;
}
.outer .header > .bottom .searchArea .searchForm input:focus {
  outline: none;
}
.outer .header > .bottom .searchArea .searchForm button {
  height: 32px;
  width: 68px;
  background-color: #ea4a36;
  border: none;
  color: #fff;
  float: left;
  cursor: pointer;
}
.outer .header > .bottom .searchArea .searchForm button:focus {
  outline: none;
}
.outer .type-nav {
  border-bottom: 2px solid #e1251b;
}
.outer .type-nav .container {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  position: relative;
}
.outer .type-nav .container .all {
  width: 210px;
  height: 45px;
  background-color: #e1251b;
  line-height: 45px;
  text-align: center;
  color: #fff;
  font-size: 14px;
  font-weight: bold;
}
.outer .type-nav .container .nav a {
  height: 45px;
  margin: 0 22px;
  line-height: 45px;
  font-size: 16px;
  color: #333;
}
</style>
